diff options
Diffstat (limited to 'sources/pyside6/tests/signals/bug_79.py')
-rw-r--r-- | sources/pyside6/tests/signals/bug_79.py | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sources/pyside6/tests/signals/bug_79.py b/sources/pyside6/tests/signals/bug_79.py new file mode 100644 index 000000000..77ac621d5 --- /dev/null +++ b/sources/pyside6/tests/signals/bug_79.py @@ -0,0 +1,59 @@ +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 + +import os +import gc +import sys +import unittest + +from pathlib import Path +sys.path.append(os.fspath(Path(__file__).resolve().parents[1])) +from init_paths import init_test_paths +init_test_paths(False) + +from PySide6.QtGui import QStandardItemModel +from PySide6.QtWidgets import QApplication, QTreeView + + +try: + from sys import gettotalrefcount + skiptest = False +except ImportError: + skiptest = True + + +class ConnectTest(unittest.TestCase): + + def callback(self, o): + print("callback") + self._called = o + + def testNoLeaks_ConnectAndDisconnect(self): + self._called = None + app = QApplication([]) # noqa: F841 + o = QTreeView() + o.setModel(QStandardItemModel()) + o.selectionModel().destroyed.connect(self.callback) + o.selectionModel().destroyed.disconnect(self.callback) + gc.collect() + # if this is no debug build, then we check at least that + # we do not crash any longer. + for idx in range(200): + # PYSIDE-2230: Warm-up is necessary before measuring, because + # the code changes the constant parts after some time. + o.selectionModel().destroyed.connect(self.callback) + o.selectionModel().destroyed.disconnect(self.callback) + if not skiptest: + total = gettotalrefcount() + for idx in range(1000): + o.selectionModel().destroyed.connect(self.callback) + o.selectionModel().destroyed.disconnect(self.callback) + gc.collect() + if not skiptest: + delta = gettotalrefcount() - total + print("delta total refcount =", delta) + self.assertTrue(abs(delta) < 10) + + +if __name__ == '__main__': + unittest.main() |